5 ms·

Pretty sure they are talking about the K40 "blue box" laser. I have heard they require some mods to get working properly but for the price some think they are

by Ccecil 11y ago

Pretty sure they are talking about the K40 "blue box" laser. I have heard they require some mods to get working properly but for the price some think they are worth it.

matheweis 11y ago
More info please :)
- Vexs 11y ago
  These things. http://www.ebay.com/itm/High-Precise-40W-CO2-Laser-Engraving-Cutting-Machine-Engraver-Cutter-USB-Port-/201264099304?hash=item2edc466fe8 http://www.ebay.com/itm/High-Precise-40W-CO2-Laser-Engraving...
  - samstave 11y ago
    How big is that one on Ebay? I don't see any specs. Also - if you click on Shipping -- it says "free shipping" then it says "$300 shipping" Which is it?
    - Vexs 11y ago
      > Engraving Area: 12x8inches/300x200mm > Free shipping Standard Shipping (UPS Ground) > US $300.00 One-day Shipping (UPS Next Day Air®) Come on man, it says right there.
      - samstave 11y ago
        Weird... I must be blind -- for whatever reason, I couldnt find it so simply. Hmm... Thanks though
- deleted 11y ago
  [deleted]
- dougmany 11y ago
  Just search 40w laser engraver on ebay and you should get several hits around $400. Mine is working great after some mods. Mods: ~$25 for 8ft ground rod and wire ~ $35 for 24V DC power supply( includes 5 volt supply because I blow out the DC section of the board it come with) ~ $45 Raspberry Pi CNC Board + drivers ~ $35 Raspberry PI I can scp dxf files to the raspberry then rdp or ssh -X to open bCNC. Open the file and click Run. bCNC just added laser support so the setup is trivial. I'm not too sure on the cutting power though. I have done paper, leather and cardboard but the 1/8in plywood I have tried is too thick. I also had to put a 3904 transistor and a resistor in the board to make the laser on signal be sinking.